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Icom Manuals
Transceiver
IC-7800
Service manual addendum
Icom IC-7800 Service Manual Addendum page 238
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:
Instruction manual
(230 pages)
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Service manual
(216 pages)
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Manual
(27 pages)
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Contents
Table of Contents
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Advertisement
Aug. 2008
OSC UNIT
OSC UNIT
J73
to RXPLL-B
S10M
unit J10
-0.6dBm
J72
M10M
to RXPLL-A
unit J10
IC10
12.02V
BA12FP
L10
HF50ACC322513
1
2
I
O
G
J71
to MAIN
REF_IN/OUT
unit J491
5.00V
10.21V
Q22
X1
2SC4215
C20
CR-772.
Q21
5
1
2SC4081
0.1
+DC
REF V
2
+VC
C22
R23
4
3
OUT
GND
0.1
4.7
5.00V
Q42
2SC4215
C42
R43
0.1
22
IC91
AD5260BRU50
1
14
SDO
A
2
13
C94
W
NC
3
12
B
VL
4
11
0.0047
VDD
VSS
5
10
SHDN
GND
6
9
CLK
PR
7
8
IC92
SDI
CS
TC7W04F
5
4
6
3
7
2
8
1
ODAT
OCK
L92
HF50ACC322513
C76
R82
0.0047
47
R77
100
C73
Q70
2SC4081
0.0047
C72
R75
C75
0.0047
47
0.0047
75m
0V
C25
L23
L24
0.1
C27
C30
82p
22p
R25
3.3k
Q23
DTC114EU
RL10
FTR-B4CA012Z
C45
L43
L44
0.1
C47
C50
82p
22p
R45
3.3k
Q43
DTC114EU
CP71
C71
R72
0.0047
39
ODAT
OCK
RL11
FTR-B4CA012Z
Q11
DTC114EU
R61
Q12
DTC114EU
22
C61
Q61
2SC4081
0.1
C63
R64
0.1
47
Q62
2SC4081
2.91V
Q10
DTC114EU
Q13
Explanatory notes
DTC114EU
VOLTAGE LINE
Q101
2SC4097
R101
220
OCK
ODAT
ODAT
OCK
77
C66
10p
L61
L62
LS-476
LS-476
MESUREMENT CONDITIONS
voltage at RX
frequency: 14.1 MHz
mode: J3E(USB)
ANT(RX): no input
Digital tester
range: input impedance
J2
GND
OCK
ODAT
R3
1k
OCS
1k
R2
OSS2
to LOGIC
R1
1k
OSS1
unit J814
L2
P+8V
P+15V
HF50ACC322513
P+15V
GND
L1
HF50ACC322513
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